题目内容

Scientists have reached the conclusion____the temperature on the earth is getting higher and higher.

A. when
B. but
C. that
D. for that

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—Don’t bother to drive me back.—But then you’d have to walk a long way home,________?

A. do you
B. hadn’t you
C. wouldn’t you
D. would you

Let’s prepare for the exam together, ________?

A. can we
B. shall we
C. don’t we
D. will you

I don’t think I will bring you much trouble, __________?

A. will I
B. won’t I
C. do I
D. don’t I

Someone has left the light on, ________?

A. has he
B. hasn’t he
C. have they
D. haven’t they